FIG. 1 is a perspective view of the potted plant platform link showing my new design; FIG. 2 is top view thereof; FIG. 3 is a bottom view thereof; FIG. 4 is an elevational side view thereof; FIG. 5 is an elevational rear view thereof; FIG. 6 is an elevational front view thereof; and, FIG. 7 a perspective environmental view thereof, in assembled condition. The broken lines in the FIG. 7 are for illustrative purposes only and form no part of the claimed design.